Oil in the wiring loom.

What is the crack with this,what happens where does it occur,prevention ?
Cheers Jim

Cheers for that Martin,exactly want i wanted to know,guess what i will be taking a look at tomorrow !
Do you know if the failing seals are available ?
"Prevention better than cure"

replace the compleat loom its about £30 off ebay thae are a different design to the original one but they still leak after 50k use plenty of electricial cleaner (i use brake and clutch cleaner) to clean the loom and plugs out you may need to do the ecu plug 2 or 3 times as the oil is working its way down the rest of the loom